From MMKB
Mega Man using Thunder Beam
is
Elec Man's Special Weapon. When used by
Mega Man, it shoots three long electrical bolts in different directions, one forward, one up, and one down. Because of it, Thunder Beam is considered the most powerful weapon in the first
Mega Man game for NES and
Mega Man: Dr. Wily's Revenge for Game Boy. It can also break certain barriers that can otherwise only be removed by the
Super Arm. In
Mega Man Powered Up, it can be used to charge certain blocks. In the NES version of Mega Man, it can make short work of the
Yellow Devil and other bosses when mixed with "the glitch", allowing to hit them multiple times with one shot.
[edit] Bosses weak against Thunder Beam
